I have not had bladder surgery, but I may be able to help you and anyone else who experiences unwanted leaking.
We have a nurse on our staff, Diane K. Newman - who is a well-known nurse who has published many books regarding these conditions. If you can't find anything on our site that directly helps you, please utilize our Ask-A-Nurse feature. These questions are answered directly by Diane. You can write her a question, and she will respond to you with her answer.
For everyone else out there who is having some post-pregnancy leaking, we have a whole section devoted to re-strengthening your pelvic muscles w/kegel exercises and more. We just launched a whole new Kegel center. Here's the link: http://www.seekwellness.com/kegel/index.htm
Hope this helps you, L., and anyone else who is experiencing incontinence as well!